(19)

(11)

EP 0 932 335 A1

(12)

(43) Date of publication: 04.08.1999 Bulletin 1999/31 (21) Application number: 96927475.0 (22) Date of filing: 22.08.1996

(51) International Patent Classification (IPC):  A01K 83/ 00( . ) (86) International application number: PCT/CA1996/000565 (87) International publication number: WO 1997/014302 (24.04.1997 Gazette 1997/18)

(84) Designated Contracting States: AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 18.10.1995 US 19950005350P (71) Applicant: Ivarson, James K. Armstrong, British Columbia V0E 1B0 (CA)	(72) Inventor: Ivarson, James K. Armstrong, British Columbia V0E 1B0 (CA) (74) Representative: Ryan, Anne Mary  c/o Anne Ryan & Co. 60 Northumberland Road Ballsbridge Dublin 4 Ballsbridge Dublin 4 (IE)